the family has several mentions as do the other names listed in Ros Davies Co Down website Simply search the Boyd. using Kilkeel in your document search to sweep up manyhttp://freepages.genealogy.rootsweb.ancestry.com/~rosdavies/SURNAMES/B/BoydAJ.ht
Sorry cant help on the family papers, presuming you have PRONI resources
I don’t know if the Crossle papers are relevant to you.they are one of several in
http://www.bagenalscastle.com/ancestry/ they contain eg
Crossle Papers
First name Surname Reference Date Address Type of document Premises concerned Comment
John Boyd 103 1826 Newry Deed of trust
John Boyd 105 1827 Assignment of annuity
Andrew Boyd 7 1752 Newry Lease Boat St, Newry
Andrew Boyd 10 1762 Newry Mortgage Lisduff
Hutcheson Boyd 275 1872 Newry Conveyance Sheepbridge and Carnmeen , County Down
Boyd 326 Genealogical notes
I browsed
1796 Kilkeel Flax growers of Ireland
http://www.failteromhat.com/flax/down.php James M'Neely Kilkeel Down
so Agnes McNeilly might just be the daughter who m David Boyd?
Agnes Boyd the widow is listed in
http://www.irishgenealogyhub.com/down/tithe-applotment-books/kilkeel-parish.php#.V2-QT1eoc5QBoyd, Adam Townland: Ballykeel Year: 1830
Boyd, Hugh Townland: Benagh Year: 1830
Boyd, Widow Agnes Townland: Kilkeel Year: 1830
as are
McNeilly, Daniel Townland: Moneydaraghmore Year: 1830
McNeilly, Francis Townland: Ballymagart Year: 1830
McNeilly, George Townland: Moneydaraghbeg Year: 1830
McNeilly, Henry Townland: Moneydaraghmore Year: 1830
McNeilly, Henry Townland: Mullertown Year: 1830
McNeilly, Isaac Townland: Glassdrummond Year: 1830
McNeilly, James Townland: Glassdrummond Year: 1830
McNeilly, Richard Townland: Moneydaraghbeg Year: 1830
McNeilly, Robert Townland: Moneydaraghbeg Year: 1830
roughly Glassdrummond ie Glasdrumman is close to the ne corner of the parish half way sw is Ballykeel onwards to sw corner inc Benagh mullartown inc annalong is closer to to ne corner. ballykeel is two townlandsne of KIlkeel itself
there are family tree manuscripts for most of your surnames that exist in the Blackwood collection, Linenhall Library, however at first sight of an incomplete index there is no mention of Kilkeel.
Boyd vols 4p54, 6p54 Glastry, 10p93, 11N, 17 Glastry, 20, 91
Chambers vol 48 Martin
Crory -
Ferguson vols 1p180N Newforge, 3p136, 14p109, 24p24 Newforge, 29 Newforge
Mcneilly vols 29, 31
Matier vols 20 Burrows
other sources
Alan McCutcheon Industrial Archaeology of NI
Linen Museum Lisburn
good luck